Determination of pKa values of some azo dyes in acetonitrile with perchloric acid

被引：29
作者：
Kurtoglu, M
Birbiçer, N
Kimyonsen, Ü
Serin, S [1 ]
机构：
[1] Univ Kahramanmaras Sutcu Imam, Fac Sci Arts, Dept Chem, TR-46100 Kahramanmaras, Turkey
[2] Univ Kahramanmaras Sutcu Imam, Dept Text Engn, TR-46100 Kahramanmaras, Turkey
[3] Baser Colgate, Adana, Turkey
来源：
DYES AND PIGMENTS | 1999年 / 41卷 / 1-2期
关键词：
non-aqueous titrations; potentiometric titrations; basicity order; azo dyes;
D O I：
10.1016/S0143-7208(98)00077-1
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
In this study, 10(-4) M acetonitrile solutions of 15 azo dyes synthesized by coupling hydroxyl containing compounds such as phenol, 1-naphthol and 2-naphthol with diazonium salts obtained by the diazotisation of aniline and aniline derivatives were determined by potentiometric titration with perchloric acid in acetonitrile at room temperature. The turning points and the half neutralization potentials of these compounds were determined using the potentiometric titration curves obtained in order to calculate their pKa values. (C) 1999 Elsevier Science Ltd. All rights reserved.
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收藏
页码：143 / 147
页数：5
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